What size Big Block

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Thanks I have a buddy building a big block to try and run down my small block. I know he has a 400 block and was just at his engine builder and say his 4.15 crank and just wondered how big of size it could be.

should be to hard...lol Most guys run the 471-472ish kit. They seem to run real good. Buddy ran mid 9's in an all steel 3300lb+ duster before going to the 500inch low deck, he was in the 9.20's this year. Not bad for an old foot brake car.

Its funny I never see these big blocks run those numbers at the track. Well at least a street car that is, I do see gutted out ones run some mid nines.

They only S/B's I see come close to that are using 2 stages of juice...lol His car runs good, but it's not a street car. It has 2 glass seats and no back seat. He's also or was close to 280. It's tubbed and has big stickies out back, not sure of the size. He broke a rod last race of the season so he's going bigger next year 540 I think. Everything the same except more cubes. Not sure but I think he's running like a 690something solid roller.

Posted By: Mr.Yuck

Re: What size Big Block - 12/28/11 05:20 PM

[Don't forget roll cage, driving suit etc...

yeah the cage should already be in, that's why I'm good now. I just want to make a few fast passes then sit on an 11.51 dial. My next car will be fast. BTW what do W9's run? like $1100 bare?

Posted By: sixpackgut

Re: What size Big Block - 12/28/11 05:20 PM

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Hey Mr yuck you need good heads on a big block to go this fast and everyone in this post has had 440-1 heads. Last time I checked it was a good amount of money for a good set, cnc and rockers intake etc.. It ain't cheap going this fast weather its a big block or small block. I have a lot less in my motor then you think.

i dont have any of that stuff. even my intake and carbs i have less than $700 in. bottom of the barrel EZ heads here, standard rockers and mild roller. it ran 6.20s @110 at 3500 lbs in my challenger

Do you think a ez head is better than a sr head?

no. i believe the SR's are better but have a raised exhaust port and i was afraid it would cause problems with the headers in my challenger that seemed to wrap around every steering piece in the car

Posted By: 1967dartgt

Re: What size Big Block - 12/28/11 05:34 PM

I though the SRs where the base head. I though all the 440-1 heads flow better. Isn't a ez just a 440-1 with standard exhaust ports?

Posted By: 1967dartgt

Re: What size Big Block - 12/28/11 05:37 PM

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dear mr small block. stock crank 440 with old small indy heads that flow less than some small block indy heads. 262/265cam 630lift solid low 10s. with out having to buy special for these heads parts.

If you ever came to see me do a burnout you would understand why I am a smallblock guy... 8000 rpm is not uncommon for me in a burnout box..LOL

Posted By: pittsburghracer

Re: What size Big Block - 12/28/11 05:41 PM

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dear mr small block. stock crank 440 with old small indy heads that flow less than some small block indy heads. 262/265cam 630lift solid low 10s. with out having to buy special for these heads parts.

If you ever came to see me do a burnout you would understand why I am a smallblock guy... 8000 rpm is not uncommon for me in a burnout box..LOL

Who do you think you are, John Force.

Posted By: sixpackgut

Re: What size Big Block - 12/28/11 05:45 PM

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I though the SRs where the base head. I though all the 440-1 heads flow better. Isn't a ez just a 440-1 with standard exhaust ports?

if you get the big EZ heads that take the offset rockers they would be more like the -1s with the stock exhaust port. but i think the price goes way up like the -1 heads.

i have read here some guys have very stout SR heads. obviously if the head is a standard port head then it will not have enough volume for a bigger motor.

Posted By: 1967dartgt

Re: What size Big Block - 12/28/11 05:46 PM

NO found it works well with radials short, hard, fast burn out that is done in third gear.

Posted By: 1967dartgt

Re: What size Big Block - 12/28/11 05:48 PM

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I though the SRs where the base head. I though all the 440-1 heads flow better. Isn't a ez just a 440-1 with standard exhaust ports?

if you get the big EZ heads that take the offset rockers they would be more like the -1s with the stock exhaust port. but i think the price goes way up like the -1 heads.

i have read here some guys have very stout SR heads. obviously if the head is a standard port head then it will not have enough volume for a bigger motor.

Oh didn't know there was that difference with the ez's. Learn some thing new everyday.

Posted By: sixpackgut

Re: What size Big Block - 12/28/11 05:49 PM

according to this, modern cylinder head can get 370cfm out of a SR head. that sounds pretty good to me

http://users.erols.com/srweiss/tablehdc.htm#Chrysler_Big_Block

Posted By: 1967dartgt

Re: What size Big Block - 12/28/11 05:55 PM

Thats some big flow numbers, didn't think they would go that high.

Posted By: sixpackgut

Re: What size Big Block - 12/28/11 06:00 PM

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Thats some big flow numbers, didn't think they would go that high.

there use to be alot more guys that posted good info here that are gone now. the SR's were alot more popular before the EZ's came out

Posted By: jim sciortino

Re: What size Big Block - 12/28/11 06:57 PM

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He says it ran 146 mph last year in the quarter.It was a 499 10 to 1 compression 700+ lift but less then 800 with the indy sr non max wedge in a 3300 lb dart. I think he was streching the truth some what do you guys think. Isn't that like 750hp to run that fast ib that car? From some of the post about big block it doesn't seem like thats what you guy get out of them.

In the mid 90s we had a 440-1 on a 499ci with about 12-1 static and net intake lift of .687 IIRC. A 3280# 69' Barracuda on SS springs and footbrake w/9" J converter went 145.80 in average ATCO air (maybe 1500ft).

Drove that car on the street as much, or more than any low 9sec N/A car in the country for 4 years, I'll bet.

Thats a good running street car, now with less head, less compresion and same weight do you think you could go faster? Thats what I was running late 90s and early 2000s with pump gas and a small block on spray. It was only 385 cuin with edelbrock rpm heads. Wish I never took that motor apart had a lot of fun with it driving all over the place.

Good question.....

Depends. We know alot more today than we knew in 94'.

Posted By: viperblue72

Re: What size Big Block - 12/28/11 09:52 PM

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Mr.Yuck if you are talking about Bill's blue demon it is a 499 with a 670 lift roller.He bought the motor out of my brothers full interior 30x10 tire 69 dart with mufflers and went 9.30's at 146.And 1967dart gt if you never see a street car with a big block run good you need to get out to different tracks more often.Not saying they are everywhere but there are some good running ones out there floating around.

Yes they are out there but very few just like small blocks. Its mopars in general not a lot of them. Next time I get down your way I will let you play with my nitrous machine, your brother to with his big block.

67 jeeesh such hate for BB, you know you could of had one that ran as good or better than that SB for 1/2 the price...lol

Another stupid pissing match. Yucko do you also go pick on the ricer kids in your spare time? It amazes me how much you toot your horn and only run 11.40s. In case you haven't noticed lately its not hard to make good power with small or big blocks. Its a really dumb argument especially when your car is slow.

Posted By: bdaz smblk

Re: What size Big Block - 12/29/11 03:20 AM

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Mr.Yuck if you are talking about Bill's blue demon it is a 499 with a 670 lift roller.He bought the motor out of my brothers full interior 30x10 tire 69 dart with mufflers and went 9.30's at 146.And 1967dart gt if you never see a street car with a big block run good you need to get out to different tracks more often.Not saying they are everywhere but there are some good running ones out there floating around.

Yes they are out there but very few just like small blocks. Its mopars in general not a lot of them. Next time I get down your way I will let you play with my nitrous machine, your brother to with his big block.

Come get some.Don't forget my ets are at mason dixon not cecil or atco so my car has more to.Make sure you bring some money with you.(lol)

Posted By: 1967dartgt

Re: What size Big Block - 12/29/11 04:08 AM

Sure not a problem. Gettin new pistons put in will be down in the spring. I think you might know about a little to much timing and pistons burning up.LOL

Posted By: bdaz smblk

Re: What size Big Block - 12/29/11 04:15 AM

Mines apart rite now to.Not sure what all I want to change yet.

Posted By: Mr.Yuck

Re: What size Big Block - 12/29/11 04:16 AM

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Mr.Yuck if you are talking about Bill's blue demon it is a 499 with a 670 lift roller.He bought the motor out of my brothers full interior 30x10 tire 69 dart with mufflers and went 9.30's at 146.And 1967dart gt if you never see a street car with a big block run good you need to get out to different tracks more often.Not saying they are everywhere but there are some good running ones out there floating around.

Yes they are out there but very few just like small blocks. Its mopars in general not a lot of them. Next time I get down your way I will let you play with my nitrous machine, your brother to with his big block.

67 jeeesh such hate for BB, you know you could of had one that ran as good or better than that SB for 1/2 the price...lol

Another stupid pissing match. Yucko do you also go pick on the ricer kids in your spare time? It amazes me how much you toot your horn and only run 11.40s. In case you haven't noticed lately its not hard to make good power with small or big blocks. Its a really dumb argument especially when your car is slow.

hey viper put your sb in a 3900 lb car and come see me. I never said a sb can't run ashhat. Put that 340 junk in a 3800+ b-body thats driven to the track and home an you come see me Jack. BTW do you have a car that runs 11.30's? 11.39 SO FAR. I drive this car everywhere w/ kids in the back seat. If I want a 9 second car I can do it. If you notice I'm not "picking" on anybody. 67 has a nice fast car.. it's all fun. Don't take it or yourself to serious.

Posted By: viperblue72

Re: What size Big Block - 12/29/11 07:17 AM

Mr Yucko,
My apologies! I thought you were turning another post into a sb vs. Bb argument. But it was the poster that started it this time. But in the past a lot of good topics you've hijacked with by stirring that pot.
And yes my pump gas eddie headed smallblock would have ran 11.40s in your car.

But I sold it to a guy that now runs 126mph in the 1/4 with it in all steel duster.
I am joining the big block crowd, but I still love those screamin smallblocks

Posted By: Mr.Yuck

Re: What size Big Block - 12/29/11 02:58 PM

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Mr Yucko,
My apologies! I thought you were turning another post into a sb vs. Bb argument. But it was the poster that started it this time. But in the past a lot of good topics you've hijacked with by stirring that pot.
And yes my pump gas eddie headed smallblock would have ran 11.40s in your car.

But I sold it to a guy that now runs 126mph in the 1/4 with it in all steel duster.
I am joining the big block crowd, but I still love those screamin smallblocks

watch out Viper you'll never go back...

Posted By: 1967dartgt

Re: What size Big Block - 12/30/11 04:55 AM

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Mr Yucko,
My apologies! I thought you were turning another post into a sb vs. Bb argument. But it was the poster that started it this time. But in the past a lot of good topics you've hijacked with by stirring that pot.
And yes my pump gas eddie headed smallblock would have ran 11.40s in your car.

But I sold it to a guy that now runs 126mph in the 1/4 with it in all steel duster.
I am joining the big block crowd, but I still love those screamin smallblocks

My first question was on size with low deck and second question was how fast with indy sr's at 499". I have no beef with big blocks just some people think I do,just like bustin on the slow ones. Shoot I race with Guppy every month at cecil so I get to see his bada$$ big block all the time.

Posted By: 72Swinger

Re: What size Big Block - 12/30/11 06:38 AM

I think Indy has EZ-1s on sale for $2100 complete with bolts,valley tray and gaskets. The EZ-1s have a cnc MW intake opening 275cc.

Posted By: Mr.Yuck

Re: What size Big Block - 12/30/11 02:48 PM

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Mr Yucko,
My apologies! I thought you were turning another post into a sb vs. Bb argument. But it was the poster that started it this time. But in the past a lot of good topics you've hijacked with by stirring that pot.
And yes my pump gas eddie headed smallblock would have ran 11.40s in your car.

But I sold it to a guy that now runs 126mph in the 1/4 with it in all steel duster.
I am joining the big block crowd, but I still love those screamin smallblocks

My first question was on size with low deck and second question was how fast with indy sr's at 499". I have no beef with big blocks just some people think I do,just like bustin on the slow ones. Shoot I race with Guppy every month at cecil so I get to see his bada$$ big block all the time.

I think 499-500 is as bis as people go w/ the 400. And I'm guessing w/ a good driver and set-up it could run mid 9's in a full bodied car. Just as guess. RAYMOND here used to have a 67 Valiant way back when stroker kits were home made w/ 440 cranks and chevy rods. It ran 9.60's on the back bumper. They seem to be a good combo for the value.
67 Do you ever get down to Mason Dixon?

Posted By: viperblue72

Re: What size Big Block - 12/30/11 05:36 PM

It seems the 4.25 kit would be popular and fit about as good as a 4.15 w standard rod journal. And fwiw I just ordered a eagle 4.15 crank with 2.2 journals that should fit even better. I really don't see performance being much different with any of these being 12 c.i.d. difference. The major horsepower is gonna be in the cylinder head.

Posted By: 1967dartgt

Re: What size Big Block - 12/31/11 05:30 AM

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Mr Yucko,
My apologies! I thought you were turning another post into a sb vs. Bb argument. But it was the poster that started it this time. But in the past a lot of good topics you've hijacked with by stirring that pot.
And yes my pump gas eddie headed smallblock would have ran 11.40s in your car.

But I sold it to a guy that now runs 126mph in the 1/4 with it in all steel duster.
I am joining the big block crowd, but I still love those screamin smallblocks

My first question was on size with low deck and second question was how fast with indy sr's at 499". I have no beef with big blocks just some people think I do,just like bustin on the slow ones. Shoot I race with Guppy every month at cecil so I get to see his bada$$ big block all the time.

I think 499-500 is as bis as people go w/ the 400. And I'm guessing w/ a good driver and set-up it could run mid 9's in a full bodied car. Just as guess. RAYMOND here used to have a 67 Valiant way back when stroker kits were home made w/ 440 cranks and chevy rods. It ran 9.60's on the back bumper. They seem to be a good combo for the value.
67 Do you ever get down to Mason Dixon?

I hope it runs that good for him, It would be a good race his big block to my small block. No I don't get out west that much but two years ago I was working in oakland md and raced there.